Boiler, furnace, or the like



July 12, 1938;

J. E. THIBAUDEAU BOILER, FURNACE, OR THE LIKE Filed July 10, 1936 4 Sheets-Sheet l Jfily 12, 1938.

J. E. THIBAUDEAU 2,123,444

I BOILER, FURNACE, OR THE LIKE Filed July 10, 1936 4 Sheets-Sheet 2 y 2, 1938- J. E. THIBAUDEAU 2,123,444

BOILER, FURNACE, OR THE LIKE Filed July 10, 1936 4 SheqtsSheet 3 July 12, 1938 J. E. THIBAUDEAU 2,123,444

' BOILER, FURNACE, OR THE LIKE v Filed July 10, 1956 4 Sheets-Shegt 4 Patented July 12, 1938 Miser owin BOILER, FURNACE, on THE LIKE Joseph Edmond Thibaudcau, Shawinigan Falls, Quebec, Canada Application July 10,

3 Claims.

The present invention relates to improvements in boilers, furnaces or the like, and its main ob ject is to provide an improved construction and arrangement of parts in a boiler, whereby, the water in the cells circulates in one direction while the fumes and smoke circulate in an opposed direction.

Another object is to provide an enlarged heating surface and generally produce a boiler of this character which is efficient, cheap to operate, durable, readily accessible for cleaning and repair purposes.

The invention broadly consists in providing one or more series of parallel (horizontal and vertical) water cells having intermediate corresponding and adjoining fume flues, said cells being readily removable if repairs are necessary. The cells are preferably externally formed by means of an outer tubular wall on the inner side of which the cells are formed and radially disposed, each of said water circulating cells being provided on the inner side with sheet of dented or corrugated metal, each of said dents being conveniently distanced from one another; said outer casing and dented sheet being closed at both ends and welded or otherwise staunchly secured together, thereby, providing a water column having upon its inner wall a plurality of radial parallel and longitudinal fins, and corresponding" recesses, which, when closed by the tubular wall of the adjacent cell, will provide a plurality of longitudinal radially formed lines for the fumes and gases to pass therethrough. The outer cell unit is of relatively larger diameter than the adjacent inner cell, in order that said cells may fit in one another, as further fully described.

In the accompanying drawings:-

Fig. 1 is a side elevation View of the combination of a horizontal and an upright boiler, operatively connected together;

Fig. 2 is an enlarged cross section view on line 2-2 of Figures 1 and 3;

Fig. 3 is an enlarged longitudinal section view on line 3-3 in Figure 2;

Fig. 4 is an enlarged cross section view online 4-4 on Figure 1;

Fig. 5 is a vertical section view on line 5-5 in Figure 4; v

Fig. 6 is a vertical segmentary section view on line 66 of Figure 3.

Like numerals of reference indicate corresponding parts in each figure.

Referring to the drawings and particularly to cell-units of a boiler, said unit being preferably 1936, Serial No. 89,862

shown in horizontal position and closed at one end by the smoke collecting box ii, and the fire and ash doors Ma and I2 respectively, and at the other end by the cleaning door I3 and end wall I311. The upright elongated tubular cellunit I l, disposed adjacent said unit Ill, preferably reposes upon a cement base and is closed at its uppermost end by the top member that is formed of a plurality of cells I6. said unit Ill is located the fuel feeding hopper ll, and I8 is a smoke-pipe connecting the unit Hi to the unit I4, while I9 is the smoke-pipe leading to the chimney.

Over and above The horizontal cell-unit Ill which is fully disclosed in Figures 2 and 3 of the drawings, consists of an outer tubular shape wall 2t and a longitudinally dented or corrugated cylindrical inner wall 2 I, distanced parallel and longitudinal thereto and suitably joined together at each end by welding or any other convenient means, one end of which is bent to form a rear upright wall I311, whereby is formed an outer water circulating cell 23. Adjacent one end of said cell is located the water-inlet opening 24, and 25 is the water-outlet which is preferably connected by means of the pipe 26 to the water-header 27 disclosed in Figure 1.

Adjacent and resting against the ridges of the corrugations of the wall 2i is provided an intermediate water-circulating cell 28 which also forms than the outer cell 23 preferably extends outwardly through the end of said outer cell and in its upright wall 29 is provided an opening 3I connected by means of a pipe 3 Ia, which registers with an opening 3Ib, provided in the outer upright cell wall I3a. Water is supplied to said intermediate cell 28 by means of the water pipe 33, which is connected to said pipe Bla and 34 is the water outlet opening which is suitably connected to the water header 2i, by means of the pipe 35.

Located in the front end of the cells 23 and 2B is the fume or smoke collecting chamber 36, which is formed by the casing I I, upon which the fire and ash doors Na and I2 are respectively mounted.

Upon the inner wall of the cell unit 28, may be provided, if it is desired to further increase the heating surface, a dented or corrugated metal semi-circular sheet 31. This dented metal sheet is preferably located around the upper portion of the walls of the fire-box located in the cell 28, but it should be understood that it is only an addition which may be dispensed with. If used, the wall 38 of the cell 28 only extends mid-way and the tubular wall is completed by said dented metal sheet 31. To strengthen the said sheet 31, two or more metal straps 39 are provided, upon which said sheet is welded. It is also desirable, to prevent said cell from collapsing, to also provide strengthening spacing members 40 which engage said straps 39 and the wall 28a. The fuel hopper |1 engages into a suitable passageway 4| respectively provided in the upper walls of the cell units 23 and 28, said hopper extending into the fire-box in cell 28 in the shape of an elongated rectangular member 42 but terminating at a suitable distance from the grate 43. The dented sheet 31 extends downwardly and parallelly to the walls of the said member 42, to its open lower end to which it is joined by welding or any other means, thus providing around said member 42 a protective water circulating cell 28 thus preventing said extension member from overheating. The open lower-end of said member 42 is preferably closed by any suitable means, such as a sliding closing plate 45, which may be operated by a rod (not shown) projecting outside the firebox or by any other convenient manual or mechanical means.

The grate 43 may be of any suitable type, but, in the present instance it is shown with a watercirculation therethrough. It principally consists of a plurality of longitudinal parallel and suitably distanced tubular bars 46, extending from a two-way header 41, preferably located in the forward end of the cell 28, said header being connected to the cell 28 by means of the connections 41c and 41b respectively, whereby a water circulation will be provided. The tubular bars 46 are respectively connected to one side of said header extending at right angle therefrom to adjacent the upright wall 29 and then bent at right angle, as at 48, and return to be connected to the other side of said header.

In the outer cell unit 23, the cold water enters through the inlet 24, flowing in the direction of the arrows 49, passing through the outlet 25 into the pipe 26 and then into the header 21. The heated fumes and smoke follow the direction shown by the arrows 50, which is inverse to that of the water circulation, then passing through the passage or space 5| formed by the upright ends |3a and 29 of the cell units 23 and 28, through the fines 52, formed by the dented wall 2| and wall 28a of said units, into the fume and smoke collecting chamber 35, through the smoke pipe l8. If the upright unit I4 is used in connection with the horizontal cell unit, said fumes enter the cell-unit l4 through a suitable inlet opening which will be hereinafter disclosed.

The upright cell unit M is preferably used when it is necessary to enlarge the heating surface. It consists of a tubular upright outer tubular wall 53 having adjacent its lower end, in one side thereof, the smoke inlet 54, to which is connected the smoke-pipe l8, leading from the cell unit I, and the smoke outlet 55 in the opposite side of the wall, to which connects the smoke pipe l9, leading to the chimney. An inner wall 56, similarly dented to that of the cell 23 (unit I 0) is suitably distanced and is parallel to' said wall 53, the end of said walls being preferably welded to form a circular cell 51, and the outer side of the said corrugated wall 56 forming a plurality of vertical parallel and radially disposed fiues 58, which are laterally partly closed by the adjoining semicircular members 58a within which the adjacent cell unit 59 is located. The said cell 59 is composed of the dented walls 60 and 6| respectively. The walls 68 and 6| are preferably spaced from one another, their ends being preferably closed diagonally (see Figure 5) and welded together toform a water circulating cell. The dented wall 6! is also held in fixed position by means of the inner tubular member 63, said tubular member being closed at both ends to form a central water cell 63a. Intermediate of said cells 51 and 59 are formed a plurality of vertical and parallel fume-fines 64 and centrally of said cell 63a, are provided four additional fume-fines 65.

All of said cells 51. 59 and 63a are closed at their ends by means of welding or in any other suitable manner and each is respectively connected to the outlet opening 66, by means of the angular pipes or connections 61 and 68 respectively. The cell 51 preferably extends up- Wards to connect directly with the outlet 66, and the connections 61 and 68 are respectively connected thereto. A pipe 69 connects said outlet 66 to the header 21.. The water enters through a suitable inlet opening 10 by means of the pipe 1| (see Figure 1) into the cell 51, through another water inlet opening (not shown) and into the intermediate cell 59, after which it passes through another water inlet (not shown) through the inlet into the inner or central cell 63a. The heated fumes enter through the fume inlet 54 into the lower chamber 13 which is divided into two sections, by means of the partition wall 14, to form another chamber 15, so as to divide the fume-flues into two separate units, one unit being used for circulating the fumes upward through the fiues 58, 64 and 65, which then enter into the upper chamber 1!, from which they pass through the second unit downward into the lower chamber 15, through the outlet 55 and the pipe l9.

The partition wall 14 is preferably waterjacketed and consists of two walls 11 and 18, distanced from one another the upturned end 18, which is closed, abutting against the lower closed end of the cells 59 and 63a, while the other end is connected at 19 to the lower end of the cell 51.

The arrows 49 indicate the source of the water circulation, while the arrows 50 disclose that of the heated fumes.

The several cell units are readily dismounted for cleaning or repair purposes. By removing the fume collector located at the forward end of the horizontal unit, access is readily had to the fines if it is desired to clean them. Should it be necessary to repair the cells, the connections of the outlet and inlet pipes are unconnected and the inner unit (unit Ill) 28 may be easily pulled-out to expose the unit 23. In the upright unit M, the cover or closure I6 is lifted and the connections securing the tubular members 61 and 68 are disconnected, thus allowing for readily removing the inner cell units, after the other connections have been disconnected.

It should be understood that only one preferred form of the present invention is herein disclosed and that modifications thereto may be made without departing from the spirit and scope of the following claims for novelty.

What I claim as my invention is:

1. The combination of a horizontal and an upright boiler consisting of a plurality of horizontal water-circulating cell-units of different diameters and disposed within one another, one of said units having a plurality of radially disposed longitudinal and parallel fin-like members and corresponding intermediate recesses, the adjoining cell wall of the adjacent inner cell laterally closing said recesses to form a plurality of fume flues, a fire box within said cell unit, an adjoining plurality of upright water circulating cell-units of different diameters and disposed within one another, said units having a plurality of radially disposed longitudinal and parallel fin like members and corresponding intermediate recesses, an adjoining wall laterally closing said recesses to form a plurality of fume fines, a fume collecting chamber located below said cell units and a fume collecting chamber located above said cell units, and fume connecting means between horizontal and the upright cell units, substantially as described.

2. In a boiler or'furnace of the character described, a plurality of horizontal water-circulating cell units of difierent diameter and disposed within one another, one of said cell units having a plurality of radially disposed longitudinal and parallel hollow fin-like members and corresponding intermediate recesses, the adjoining cell wall of the adjacent inner cell laterally closing said recesses to form a plurality of fume flues and a fire box within the inner cell unit, the inner cell unit having a longitudinally corrugated top wall above the fire box to increase heat capacity of the boiler or furnace, metal straps extending across the outer sides of said corrugated top Wall and welded thereto, brace members between said straps and the outer adjacent cell unit, and a fuel hopper having a discharge neck extending laterally through the cell units and surrounded by the water passages of the cell units.

3. In a boiler or furnace of the character described, a plurality of upright water circulating cell units of different diameters and disposed within one another, said units having a plurality of radially disposed longitudinal and parallel hollow fin-like members and corresponding intermediate recesses, an adjoining wall laterally closing said recesses to form a plurality of fume flues, a fume collecting chamber located below said cell units, a fume collecting chamber located above said cell units, a transverse partition in the lower fume collecting chamber dividing the same into a fume receiving section for directing the fumes upwardly through a section of the cell units to the upper fume collecting chamber with the other section of the lower fume collecting chamber leading to an outlet.

JOSEPH EDMOND THIBAUDEAU. 

